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primary wave
NOUN
1.
Seismology. P wave.
Source: Dictionary.com
primary wave | Define primary wave at Dictionary.com
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en.wikipedia.org/wiki/P-wave

Primary and secondary waves are body waves that travel within the Earth. The motion and behavior of both P-type ...

www.geo.mtu.edu/UPSeis/waves.html

Seismology is the study of earthquakes and seismic waves that move through ... P Waves. The first kind of body wave is the P wave or primary wave. This is the ...

earthquake.usgs.gov/learn/glossary/?term=P%20wave

P wave. A P wave, or compressional wave, is a seismic body wave that shakes the ground back and forth in the same direction and the opposite direction as the  ...

www.iris.edu/hq/inclass/animation/seismic_wave_motions

An earthquake generates seismic waves that penetrate the Earth as body waves (P & S) or travel as surface waves (Love and Rayleigh). Each wave has a ...

www.bbc.co.uk/schools/gcsebitesize/science/21c/earth_universe/seismic_wavesrev1.shtml

A secondary school revision resource for OCR GCSE 21st Century Science about the Earth in the Universe and seismic waves.

www.teara.govt.nz/en/interactive/4403/primary-and-secondary-waves

Jun 12, 2006 ... The P-wave (primary or pressure wave) is a pulse of energy that travels quickly through the earth and through liquids. It forces the ground to ...

www.kids-fun-science.com/p-waves.html

Inge Lehmann in 1936 used the travel times of P waves through the center of the Earth to prove the existence of a solid inner core of the Earth.

www.colorado.edu/physics/phys2900/homepages/Marianne.Hogan/waves.html

Earthquakes generate three types of seismic waves: P (primary) waves, S ( secondary) waves and surface waves, which arrive at seismic recording stations one ...